The evolution of our mountain-guide-favorite, the Chaos Jacket is the warmest, lightest and most packable synthetic wet-weather alpine and ice belay parka available. Perfect for shielding alpinists from howling wind and cold, damp conditions, the Pertex Endurance face fabric shrugs off rain and snow, and the warm, synthetic PrimaLoft One insulation holds in the heat in even the wettest conditions. A carefully tailored fit allows for athletic movement, a high collar and close-fitting hood with unique side-gasket system seal out the weather and protect your face, and harness-compatible handwarmer pockets with elastic closures keep your digits warm for complicated ropework and the handling of ice tools.